Details

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BUY TDA7056A https://www.utsource.net/itm/p/12605659.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc		4.5	12	18	V
Quiescent Current	IQ	Vcc = 9V		3		mA
Output Power	POM	RL = 4惟, THD=10%		1.6		W
Signal to Noise Ratio	SNR	A-weighted		85		dB
Total Harmonic Distortion	THD	PO = 1W, 1kHz		0.05		%
Input Sensitivity	Vi	VO = 2Vrms		200		mV
Input Impedance	Zi			47		k惟
Operating Temperature Range	Toper		-40		85	掳C

Instructions for TDA7056A

1. Power Supply Connection:

   • Connect the positive terminal of the power supply to pin 8 (VCC) and the negative terminal to pin 4 (GND).
   • Ensure the supply voltage is within the range of 4.5V to 18V.

2. Input Connection:

   • Connect the audio signal source to pins 2 (IN+) and 3 (IN-). The input impedance is 47 k惟.
   • Ensure the input sensitivity is around 200 mV for optimal performance.

3. Output Connection:

   • Connect the speaker to pins 5 (OUT+) and 6 (OUT-). For best results, use a 4惟 load.
   • Be mindful of the output power capability, which is up to 1.6W at 4惟 with 10% THD.

4. Grounding:

   • Ensure proper grounding by connecting all ground points (pin 4, chassis ground if applicable).

5. Thermal Considerations:

   • Operate within the temperature range of -40掳C to 85掳C.
   • If necessary, provide adequate heat sinking to prevent overheating.

6. Signal to Noise Ratio:

   • Maintain an A-weighted signal-to-noise ratio of 85 dB for high-quality audio reproduction.

7. Total Harmonic Distortion:

   • Keep the total harmonic distortion below 0.05% for clear sound output, especially at higher volumes.

8. Quiescent Current:

   • Monitor the quiescent current, which should be around 3 mA at 9V supply voltage, to ensure efficient operation.

These guidelines will help in achieving optimal performance from the TDA7056A audio amplifier.

(For reference only)